How PetraWood Works

How Does PetraWood Work?

The catalyst in PetraWood reacts with both the acids and the alkali present in wood, forming an internal seal and water barrier.

The proprietary catalyst in PetraWood penetrates through the layers of cells in the wood, forming an aero silica gel membrane on the surfaces of the cell walls. 

This membrane forms an internal seal and barrier against water and other causes of deterioration. Over the 6 to 12 months following application, the aero silica gel membrane formed will hydrate and harden into glass petrifying the wood treated.

It is effective whether applied on surfaces that will be above or below grade.